body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background-color: #ffffff;
    color: #1d1f27;
    min-height: 100vh;
}

main {
    padding: 24px 16px;
}

header {
    background-color: rgb(21, 203, 206);
    color: white;
    padding: 18px 16px;
    text-align: center;
}

main {
    padding: 32px 16px;
}

.intro-card {
    background: linear-gradient(180deg, rgba(255,255,255,1) 0%, rgba(245,252,255,1) 100%);
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 960px;
    margin: 28px auto;
}

.info-card {
    background: #ffffff;
    border: 1px solid rgba(21, 203, 206, 0.18);
    border-radius: 24px;
    padding: 24px;
    box-shadow: 0 18px 48px rgba(21, 203, 206, 0.08);
}

.info-card h2 {
    margin: 0 0 18px;
    color: rgb(21, 203, 206);
    font-size: 1.6rem;
    letter-spacing: 0.04em;
}

.info-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 12px;
}

.info-card li {
    padding: 14px 16px;
    background: rgba(21, 203, 206, 0.08);
    color: #15202b;
    border-radius: 14px;
    border: 1px solid rgba(21, 203, 206, 0.16);
}

header h1 {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin: 0;
    font-size: 2rem;
    letter-spacing: 0.08em;
}

.title-icon {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: 8px;
}

.intro-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 960px;
    margin: 32px auto;
    background-color: #ffffff;
    padding: 28px;
    border-radius: 24px;
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.08);
}

.intro-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.name {
    margin: 0 0 16px;
    font-size: 2.25rem;
    font-weight: 700;
    color: #15202b;
}

.description {
    margin: 0;
    line-height: 1.75;
    font-size: 1rem;
    color: #4b5563;
}

.intro-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.intro-image img {
    width: 100%;
    max-width: 320px;
    border-radius: 20px;
    object-fit: cover;
    box-shadow: 0 18px 30px rgba(0, 0, 0, 0.12);
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 960px;
    margin: 24px auto;
}

.info-card {
    background: #ffffff;
    border: 1px solid rgba(21, 203, 206, 0.18);
    border-radius: 24px;
    padding: 24px;
    box-shadow: 0 18px 48px rgba(21, 203, 206, 0.08);
}

.info-card h2 {
    margin: 0 0 18px;
    color: rgb(21, 203, 206);
    font-size: 1.6rem;
    letter-spacing: 0.04em;
}

.info-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 12px;
}

.info-card li {
    padding: 14px 16px;
    background: rgba(21, 203, 206, 0.08);
    color: #15202b;
    border-radius: 14px;
    border: 1px solid rgba(21, 203, 206, 0.16);
}

.info-card a {
    color: rgb(21, 203, 206);
    text-decoration: none;
    font-weight: 600;
}

.info-card a:hover,
.info-card a:focus {
    text-decoration: underline;
}

@media (max-width: 900px) {
    .intro-card {
        grid-template-columns: 1fr;
        padding: 24px;
    }

    .intro-image img {
        max-width: 260px;
    }
}

@media (max-width: 600px) {
    header h1 {
        font-size: 1.6rem;
        gap: 10px;
    }

    .intro-card {
        margin: 24px auto;
        padding: 20px;
        border-radius: 20px;
    }

    .name {
        font-size: 1.8rem;
    }

    .description {
        font-size: 0.98rem;
        line-height: 1.7;
    }

    .intro-image img {
        max-width: 220px;
    }
}

footer {
    text-align: center;
    padding: 16px;
    font-size: 0.95rem;
    color: #5b5f72;
}